Repeater; Table 3 - Pdr8000 Rf Configuration - Futurecom PDR8000 Manual

Repeater Operation Wireline Interface
Base

Repeater

5.2.1 R
EPEATER
In the Repeater mode of operation, a PDR8000 can simultaneously send and receive Voice,
Data and Supplementary Data services between the P25 CAI and the wireline interface. The
PDR8000 also has the ability to retransmit information received via RF (either analog or P25),
back over the air. This ability to retransmit RF-received traffic back over the RF transmit path is
why Repeater operation is only compatible with channels configured for full-duplex
(simultaneous transmit/receive) operation. See the illustrative examples in 5.4.3 and 5.4.4.
Having a Repeater in the system allows subscriber unit transmissions to be delivered to a larger
geographical area than the subscriber units could reach directly. Transmissions from a
subscriber unit are received at the Repeater, and then rebroadcast to the entire area within
coverage of the Repeater's transmitter.
The desire to have a PDR8000 retransmit RF-received information back over the RF-Transmit
path (a.k.a. Local Repeat) is controlled in a variety of ways:
•
A console can command the PDR8000 to Activate or Deactivate its Local Repeat
functionality by sending a wireline command to the PDR8000. The command itself
(Repeat Enable or Repeat Knockdown) indicates the desired behavior of the PDR8000.
If a console commands the PDR8000 to Knockdown Repeat operation, it prevents
subscriber units from hearing each other. This is typically desired only temporarily, and
the dispatcher can re-enable repeat operation when desired.
•
The PDR8000's initial/power-on state for Local Repeat is configurable via the
service/configuration software, and can be set to start the PDR8000 with Local Repeat
Enabled, Local Repeat Disabled, or revert to the state previously requested by a console
(locally cached within the PDR8000).
It is also possible to configure a PDR8000 to automatically activate Repeat mode in the case of
certain system outages. (This operation is known as Fallback In-Cabinet Repeat; see 6.5.)
When a PDR8000 is receiving RF-sourced information and repeating it back over-the-air, it
keeps its transmitter active for a configurable amount of time after the received signal stops.
This configuration is known as the Repeater Drop-out Delay and can be set on a per-channel
basis.
2021-11-15
V.24
Ethernet IP (DFSI)
V.24
Ethernet IP (DFSI)

Table 3 - PDR8000 RF Configuration

PDR8000® Portable Digital Repeater Product Planner
Channel Mode
Digital Only
Analog
Digital
Mixed-Mode
Digital Only
Analog
Digital
Mixed-Mode
Document 8K088X02 R5.0
Channel Type
Full Duplex
Half Duplex or Simplex
Full Duplex
Half Duplex or Simplex
Full Duplex
Full Duplex
Page 25 of 64